Docs: Text updates for 0.6.6

This commit is contained in:
Electric Keet 2024-08-25 17:29:02 -07:00 committed by tildearrow
parent 8cff0137b8
commit 4ed8a4bd5b
14 changed files with 49 additions and 27 deletions

View file

@ -72,6 +72,8 @@
**LFO**: low frequency oscillator. a wave with a slow period (often below hearing range) used to alter other sounds.
**LFSR**: linear-feedback shift register. an algorithm of generating pseudo-random noise that loops, also known as "periodic noise". depending on the location of the two "taps" used, different lengths of noise loops are generated.
**macro**: a sequence of values automatically applied while a note plays.
**noise bass**: the technique of using a PSG's periodic noise generator with a very short period to create low-frequency sounds.
@ -86,7 +88,7 @@
**period**: the length of a repeating waveform. as frequency rises, the period shortens.
**periodic noise**: an approximation of random noise generated algorithmically.
**periodic noise**: an approximation of random noise generated algorithmically with an LFSR.
- the period is the number of values generated until the algorithm repeats itself.
**phase reset**: to restart a waveform at its initial value.

View file

@ -13,10 +13,12 @@ buttons from left to right:
- right-clicking always brings up the menu.
- **Duplicate**: duplicates the currently selected instrument.
- **Open**: brings up a file dialog to load a file as a new instrument at the end of the list.
- if the file is an instrument bank, a dialog will appear to select which instruments to load.
- **Save**: brings up a file dialog to save the currently selected instrument.
- instruments are saved as Furnace instrument (.fui) files.
- right-clicking brings up a menu with the following options:
- **save instrument as .dmp...**: saves the selected instrument in DefleMask format.
- **save all instruments...**: saves all instruments to the selected folder as .fui files.
- **Toggle folders/standard view**: enables (and disables) folder view, explained below.
- **Move up**: moves the currently selected instrument up in the list. pattern data will automatically be adjusted to match.
- **Move down**: same, but downward.
@ -41,9 +43,10 @@ everything from the instrument list applies here also, with one major difference
wavetables are saved as Furnace wavetable (.fuw) files.
- right-clicking the Save button brings up a menu with the following options:
- **save wavetable as .dmw...**: saves the selected wavetable in DefleMask format.
- **save raw wavetable...**: saves the selected wavetable as raw data.
right-clicking the Save button brings up a menu with the following options:
- **save wavetable as .dmw...**: saves the selected wavetable in DefleMask format.
- **save raw wavetable...**: saves the selected wavetable as raw data.
- **save all wavetables...**: saves all wavetables to the selected folder as .fuw files.
## sample list
@ -57,6 +60,7 @@ samples are saved as standard wave (.wav) files.
right-clicking the Save button brings up a menu with the following options:
- **save raw sample...**: saves the selected sample as raw data.
- **save all samples...**: saves all samples to the selected folder as .wav files.
right-clicking a sample in the list brings up a menu:
- **make instrument**: creates a new instrument which is set to use the selected sample.

View file

@ -68,6 +68,13 @@ the following settings are available:
- **loop**: enables loop. if disabled, the song won't loop.
- **optimize size**: removes unnecessary commands to reduce size.
## ROM
depending on the system, this option may appear to allow you to export your song to a working ROM image or code that can be built into one. export options are explained in the system's accompanying documentation.
currently, only one system can be exported this way:
- [Atari 2600 (TIunA)](../7-systems/tia.md)
## text
this option allows you to export your song as a text file.

View file

@ -152,6 +152,7 @@ the keys in the "Global hotkeys" section can be used in any window, although not
| Expand song | — |
| Set note input latch | — |
| Clear note input latch | — |
| Absorb instrument/octave from status at cursor | — |
| | |
| **Instrument list** | |
| Add instrument | `Insert` |

View file

@ -93,6 +93,10 @@ settings are saved when clicking the **OK** or **Apply** buttons at the bottom o
- **Export**: select an `.ini` file to save current settings.
- **Factory Reset**: resets all settings to default and purges settings backups.
### Import
- **Use OPL3 instead of OPL2 for S3M import**: changes which system is used for the import of S3M files that contain FM channels.
## Audio
### Output

View file

@ -15,6 +15,9 @@ however, effects are continuous (unless specified), which means you only need to
- `F8xx`: **Single tick volume up.** adds `x` to volume.
- `F9xx`: **Single tick volume down.** subtracts `x` from volume.
- ---
- `D3xx`: **Volume portamento.** slides volume toward the new value instead of jumping immediately. `x` is the speed of the slide.
- `D4xx`: **Volume portamento (fast).** same as `D3xx` but 256× faster.
- ---
- `07xy`: **Tremolo.** changes volume to be "wavy" with a sine LFO. `x` is the speed. `y` is the depth.
- tremolo is downward only.
- maximum tremolo depth is -60 volume steps.

View file

@ -72,6 +72,10 @@ the following options are available in the Chip Manager window:
- DPCM: the default mode, playing 1-bit DPCM samples as supported by the hardware.
- PCM: this mode provides crispier samples by writing the delta counter directly. uses a lot of CPU time in console.
## DPCM sample loop
due to hardware limitations, a loop in a DPCM sample must start on a multiple of 512 samples (512, 1024, 1536...) and have a length that is a multiple of 128 plus 8 samples (136, 264, 392...)
## short noise frequencies (NTSC)
note | arpeggio | fundamental | MIDI note | pitch

View file

@ -27,7 +27,9 @@ Furnace isn't complete without this one...
- `E`: low pure buzzy
- `F`: low reedy
## ROM export
a song can be exported to assembly code for use with the TIunA software driver for the Atari 2600. see [TIunA on GitHub](https://github.com/AYCEdemo/twin-tiuna) for explanations of the export options.
## info
@ -35,17 +37,6 @@ this chip uses the [TIA](../4-instrument/tia.md) instrument editor.
the arp macro's fixed mode operates differently, writing the direct pitch to the chip. here's a list of pitches.
## chip config
the following options are available in the Chip Manager window:
- **Software pitch driver**: use TIunA, a software pitch driver similar to TIATune. it increases pitch precision by rapidly switching between two pitches.
- **Old pitch table**: use an older method to calculate pitch. only for compatibility.
- **Mixing mode**: changes mixing mode.
- **Mono**: normal output.
- **Mono (no distortion)**: process each channel separately to eliminate distortion.
- **Stereo**: output two channels on left and right.
- **PAL**: run slower blah blah blah
### shape 1

View file

@ -69,8 +69,9 @@ in most arcade boards the chip was used in combination with a PCM chip, like [Se
- `5Exx`: **set D2R/SR of operator 3.**
- `5Fxx`: **set D2R/SR of operator 4.**
- `60xx`: **set operator mask.**
- `xx` goes from `0` to `F`. it is a bitfield.
- each bit corresponds to an operator.
- `xx` goes from `00` to `0F`. it is a bitfield, so the value is the sum of the active operators' bits:
- OP1 is +1, OP2 is +2, OP3 is +4, and OP4 is +8.
- for example, having only OP2 and OP4 on would be 2 + 8 = 10, resulting in an `xx` value of `0A`.
## info

View file

@ -100,8 +100,9 @@ several variants of this chip were released as well, with more features.
- `5Exx`: **set D2R/SR of operator 3.**
- `5Fxx`: **set D2R/SR of operator 4.**
- `60xx`: **set operator mask.**
- `xx` goes from `0` to `F`. it is a bitfield.
- each bit corresponds to an operator.
- `xx` goes from `00` to `0F`. it is a bitfield, so the value is the sum of the active operators' bits:
- OP1 is +1, OP2 is +2, OP3 is +4, and OP4 is +8.
- for example, having only OP2 and OP4 on would be 2 + 8 = 10, resulting in an `xx` value of `0A`.
## extended channel 3

View file

@ -100,8 +100,9 @@ the YM2610 (OPNB) and YM2610B chips are very similar to this one, but the built-
- `5Exx`: **set D2R/SR of operator 3.**
- `5Fxx`: **set D2R/SR of operator 4.**
- `60xx`: **set operator mask.**
- `xx` goes from `0` to `F`. it is a bitfield.
- each bit corresponds to an operator.
- `xx` goes from `00` to `0F`. it is a bitfield, so the value is the sum of the active operators' bits:
- OP1 is +1, OP2 is +2, OP3 is +4, and OP4 is +8.
- for example, having only OP2 and OP4 on would be 2 + 8 = 10, resulting in an `xx` value of `0A`.
## extended channel 3

View file

@ -98,8 +98,9 @@ its soundchip is a 4-in-1: 4ch 4-op FM, YM2149 (AY-3-8910 clone) and [2 differen
- `5Exx`: **set D2R/SR of operator 3.**
- `5Fxx`: **set D2R/SR of operator 4.**
- `60xx`: **set operator mask.**
- `xx` goes from `0` to `F`. it is a bitfield.
- each bit corresponds to an operator.
- `xx` goes from `00` to `0F`. it is a bitfield, so the value is the sum of the active operators' bits:
- OP1 is +1, OP2 is +2, OP3 is +4, and OP4 is +8.
- for example, having only OP2 and OP4 on would be 2 + 8 = 10, resulting in an `xx` value of `0A`.
## extended channel 2

View file

@ -97,8 +97,9 @@ it is backward compatible with the original chip.
- `5Exx`: **set D2R/SR of operator 3.**
- `5Fxx`: **set D2R/SR of operator 4.**
- `60xx`: **set operator mask.**
- `xx` goes from `0` to `F`. it is a bitfield.
- each bit corresponds to an operator.
- `xx` goes from `00` to `0F`. it is a bitfield, so the value is the sum of the active operators' bits:
- OP1 is +1, OP2 is +2, OP3 is +4, and OP4 is +8.
- for example, having only OP2 and OP4 on would be 2 + 8 = 10, resulting in an `xx` value of `0A`.
## extended channel 3

View file

@ -83,8 +83,9 @@ thanks to the Z80 sound CPU, DualPCM can play two samples at once! this mode spl
- `5Exx`: **set D2R/SR of operator 3.**
- `5Fxx`: **set D2R/SR of operator 4.**
- `60xx`: **set operator mask.**
- `xx` goes from `0` to `F`. it is a bitfield.
- each bit corresponds to an operator.
- `xx` goes from `00` to `0F`. it is a bitfield, so the value is the sum of the active operators' bits:
- OP1 is +1, OP2 is +2, OP3 is +4, and OP4 is +8.
- for example, having only OP2 and OP4 on would be 2 + 8 = 10, resulting in an `xx` value of `0A`.
## info